Method and apparatus for lapping food dough

ABSTRACT

An object is to provide a method and an apparatus for lapping strip-shaped food dough onto a transporting unit without repeatedly applying tension or relaxation. A method of lapping food dough in which strip-shaped food dough being continuously conveyed is lapped onto the transporting unit configured to transport the food dough in a direction intersecting a conveyance direction of the food dough. The method includes the steps of conveying the conveyed food dough  9  to a swing guide member  137  through a swing conveyor  135  swingable in a vertical direction, the swing guide member provided at a tip end of the swing conveyor  135  so as to be swingable in a direction being horizontal and intersecting a transportation direction of the transporting unit  15 , and always maintaining an almost constant clearance between a tip end of the swing guide member  137  and a transport surface of the transporting member  15  and thereby maintaining an almost constant length of the food dough  9  from a base end of the swing conveyor  135  to the transport surface of the transporting unit  15.

TECHNICAL FIELD

The present invention relates to a method and an apparatus for lappingfood dough in which food dough extended into a long and thin shape suchas a strip shape (a sheet shape) by a extending apparatus andcontinuously conveyed by conveyance means like a belt conveyor iscontinuously lapped onto a transporting unit configured to transport thefood dough in a direction intersecting a conveyance direction of theconveyance unit. More specifically, the present invention relates to amethod and an apparatus for lapping food dough while always conveyingthe food dough at a constant speed so as not to make the food doughstretched or loose.

BACKGROUND ART

Food dough extended into a strip shape by a extending apparatus isprocessed in the following manner in order that the extending directionof the strip-shaped food dough extended by the extending apparatus canbe arranged in various directions in the resultant food dough.Specifically, when being lapped onto a transport surface of atransporting unit, the extended food dough is lapped to have itsportions overlapped in triangle shapes by being reciprocated in a widthdirection of the transport surface. Thereafter, the lapped food dough isagain stretched out. Here, Patent Literatures 1 and 2 disclose therelated art for lapping the strip-shaped food dough onto a transportsurface of a transporting unit in a manner that portions of strip-shapedfood dough overlap in triangular shapes.

[Citation List] [Patent Literature] [Patent Literature 1]

Japanese Patent Application Laid-Open No. Sho 54-70488

[Patent Literature 2]

Japanese Utility Model Application Laid-Open No. Sho 54-11988

SUMMARY OF INVENTION Technical Problems

The configuration disclosed in the above-described Patent Literature 1includes an upper slider and a lower slider positioned above atransporting unit and being horizontally movable in a directionperpendicular to a transportation direction of the transporting unit.Here, the upper slider includes a pair of bars for holding food dough ina horizontal direction while the lower slider includes a pair of barsfor holding the food dough in a vertical direction. While the upper andlower sliders are moved in mutually opposite directions, thestrip-shaped food dough guided by the pairs of bars providedrespectively on the upper and lower sliders is lapped onto a transportsurface of the transporting unit.

According to the above-described configuration, it is possible to lapthe strip-shaped food dough continuously onto the transport surface ofthe transporting unit in a manner that portions of the food doughoverlap in triangular shapes. However, in the above-describedconfiguration, the upper and lower sliders are designed to reciprocatemutually in the opposite directions. Accordingly, a distance between theupper and lower sliders becomes minimum when the upper and lower slidersare located on a vertical line. The distance between the slidersgradually increases as the sliders move in mutually separatingdirections. On the other hand, the distance gradually decreases when thesliders move in mutually approaching directions.

In other words, the configuration disclosed in Patent Literature 1 isundesirable because the food dough is repeatedly made stretched andloose.

In the configuration disclosed in Patent Literature 2, food dough extendinto a strip shape is rolled on a roll, and is guided by a swing armswingable in a direction (a width direction) perpendicular to atransportation direction of a transporting unit while being transporteddownward from a high position after being unrolled from the roll. Inthis configuration, a lower end of the swing arm is configured to swingin an arc shape. Accordingly, a clearance (referred to as a verticalinterval) between the lower end of the swing arm and a transport surfaceof the transporting unit becomes minimum when the swing arm is locatedvertically and the vertical interval gradually increases as the swingarm moves in the width direction of the transporting unit.

In other words, the configuration disclosed in Patent Literature 2 isalso undesirable because such a change in the vertical intervalrepeatedly makes the food dough stretched and loose, and also becausethe food dough lapped onto (folded and thus loaded on) the transportsurface has an uneven width dimension.

Solution to Problems

The present invention has been made in view of the aforementionedconventional problems. It therefore is an object of the presentinvention to provides a method and an apparatus for lapping food doughwhile always conveying the food dough at a constant speed so as not tomake the food dough stretched or loose.

To achieve the object, according to a first aspect of the presentinvention, there is provided a method of lapping food dough in whichstrip-shaped food dough continuously conveyed is lapped onto atransporting unit configured to transport the food dough in a directionintersecting a conveyance direction of the food dough, the methodincluding the steps of: conveying the conveyed food dough to a swingguide member through a swing conveyor swingable in a vertical direction,the swing guide member provided at a tip end of the swing conveyor so asto be swingable in a direction being horizontal and intersecting atransportation direction of the transporting unit; and alwaysmaintaining an almost constant clearance between a tip end of the swingguide member and a transport surface of the transporting member andthereby maintaining an almost constant length of the food dough from abase end of the swing conveyor to the transport surface of thetransporting unit.

To achieve the object, according to a second aspect of the presentinvention, there is provided an apparatus for lapping food dough inwhich strip-shaped food dough continuously conveyed is lapped onto atransporting unit configured to transport the food dough in atransportation direction intersecting a conveyance direction of the fooddough, the apparatus including: a vertically swingable swing conveyorconfigured to convey the conveyed food dough in a direction identical tothe conveyance direction; a swing guide member swingably provided on atip end of the swing conveyor, the swing guide member being swingable ina direction being horizontal and intersecting the transportationdirection of the transporting unit; and a guide member positioned abovethe transporting unit and configured to guide a tip end of the swingguide member in a horizontal direction.

According to a third aspect of the present invention as it dependingfrom the second aspect, there is provided the apparatus for lapping fooddough, further including tip end reciprocating means configured toreciprocate the tip end of the swing guide member along the guidemember.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, it is possible to lap food doughonto a transport surface of a transporting unit continuously withoutstretching and loosening the food dough continuously conveyed, andthereby to solve the above-described problem of the related art.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is an explanatory left side view showing an overall configurationof a food dough extending apparatus.

FIG. 2 is an explanatory plan view showing the overall configuration ofthe food dough extending apparatus.

FIG. 3 is an explanatory right side view of a main part showing aconfiguration for adjusting a position of a extending roller unitvertically.

FIG. 4 is a vertical sectional view of the main part showing theconfiguration for adjusting the position of the extending roller unitvertically.

FIG. 5 is a vertical sectional view showing a configuration of theextending roller unit.

FIG. 6 is a horizontal sectional view showing the configuration of theextending roller unit.

FIG. 7 is an explanatory view showing a configuration of link plates.

FIG. 8 is an explanatory left side view showing main part of a lappingapparatus.

FIG. 9 is an explanatory plan view showing the main part of the lappingapparatus.

DESCRIPTION OF EMBODIMENTS

Hereinafter, a food dough lapping apparatus according to an embodimentof the present invention will be described with reference to theaccompanying drawings. The food dough lapping apparatus is provideddownstream of a food dough extending apparatus for extending thick fooddough into thin food dough.

As shown in FIG. 1, a food dough extending apparatus 1 includes arectangular base plate 5 supported horizontally by multiple legs 3, anda conveyor supporting member 6 is provided at a central part in aleft-right direction (which is a vertical direction with respect to asheet surface in FIG. 1: an X-axis direction) of this base plate 5.Moreover, an upper end of an inclined transporting unit 7 extending in afront-rear direction (a Y-axis direction) and being inclined so as tolocate a front side higher than a rear side (on the left side in FIG.1), is connected to this conveyor supporting member 6. This inclinedtransporting unit 7 is formed of a general belt conveyor, for example,and has a function to transport (convey) thick food dough 9 to beextended to an upward direction.

A horizontal direction transporting unit 11 for transporting the fooddough 9 transported by the inclined transporting unit 7 horizontally ina forward direction (in a rightward direction in FIG. 1), is provided ata position on the base plate 5 corresponding to the upper end (atransport terminal end) of the inclined transporting unit 7. Thishorizontal direction transporting unit 11 is formed of a general beltconveyor, for example, and has a function to transport (convey) thestrip-shaped (sheet-shaped) food dough 9 after being extended into thethin form by a extending roller unit 13 to the forward direction.

When viewed in a conveyance direction of the food dough 9, a lappingapparatus 17 for lapping the food dough 9 after being extended into thethin form by the extending roller unit 13 is provided on a transportsurface of a transporting unit 15 for transporting the food dough 9 in adirection (the left-right direction: the X-axis direction) intersectingthe conveyance direction (the front-rear direction: the Y-axisdirection) of the food dough 9 on a downstream side (the front side: theright side in FIG. 1) of the horizontal direction transporting unit 11.

The extending roller unit 13 is configured to extend the thick fooddough 9 transported to the horizontal direction transporting unit 11 bythe inclined transporting unit 7 into the thin form. This extendingroller unit 13 is provided on a slide stand 19 so as to be verticallyadjustable, the slide stand 19 provided movably in the front-reardirection on the base plate 5.

To be more precise, long guide rails 21 are respectively disposed in thefront-rear direction in the vicinities of both left and right ends on anupper surface of the base plate 5, and left and right vertical frames 23of the slide stand 19 are movably supported on the left and right guiderails 21 through slide guides 25. The left and right vertical frames 23are connected integrally with each other by use of a connecting member27 (see FIG. 4) formed into a long shape in the left-right direction andconnected integrally with each other by use of a connecting bracket 29disposed to stride over the inclined transporting unit 7. Moreover, thisconnecting bracket 29 is provided with a flouring device 31 forsprinkling (spraying) flour or the like on the food dough 9 transportedby the inclined transporting unit 7.

Usually, the slide stand 19 is positioned to abut on a support plate 33integrally installed upright at a front end of the base plate 5. Asdescribed previously, when the slide stand 19 is positioned to abut onthe support plate 33, the slide stand 19 is fixably and releasably fixedby appropriate locking means (not shown) such as a so-called catch lock.

Therefore, when cleaning around an upper portion of the inclinedtransporting unit 7, the horizontal direction transporting unit 11 orthe like, it is possible to move the slide stand 19 backward along theguide rails 21 while releasing fixation by the locking means. When theslide stand 19 is moved backward as described above, the extendingroller unit 13 supported by the slide stand 19 is also integrally movedbackward, thereby uncovering the vicinity of the upper portion of theinclined transporting unit 7, an upper side of the horizontal directiontransporting unit 11, and the like. Accordingly, it is possible to cleanthe vicinity of the upper portion of the inclined transporting unit 7,the horizontal direction transporting unit 11, and the like easily.

In order to move the extending roller unit 13 vertically relative to theslide stand 19, outer side surfaces in the left-right direction of thevertical frames 23 are provided with guide members 35 (see FIGS. 1 and3) inclined so that one end thereof is higher than the other end, theone end facing the inclined transporting unit 7 in a directionintersecting the direction of inclination of the inclined transportingunit 7. Meanwhile, left and right elevating plates 37 are supportedvertically movably by these guide members 35 via slide guides 39.Moreover, support brackets 41 for supporting the extending roller unit13 are integrally provided on the left and right elevating plates 37.

In order to vertically move the elevating plates 37 along the guidemembers 35, both ends of a rotating shaft 43 (see FIG. 4) which is longin the left-right direction is rotatably supported by the left and rightvertical frames 23, and eccentric discs 45 are integrally attached toboth ends of this rotating shaft 43. Moreover, link plates 47 to bedisplaced in a direction along the guide members 35 by rotation of theeccentric discs 45 are relatively rotatably engaged with the eccentricdiscs 45, and pin members 49 provided on the link plates 47 are engagedwith bearings which are rotatably provided on the elevating plates 37.Here, a long hole or a slit (not shown) in a parallel direction to theguide member 35 is formed on each of the elevating plates 37 in order toavoid interference with the rotating shaft 43 that moves relatively.

According to the above described configuration, when rotating therotating shaft 43 to rotate the eccentric discs 45, the link plates 47are displaced in the direction along the guide members 35. Hence, theleft and right elevating plates 37 are moved in obliquely verticaldirection along the guide members 35.

To rotate the rotating shaft 43, a worm wheel 51 is integrally attachedto one end of the rotating shaft 43 as appropriate. This worm wheel 51is engaged with a worm 53 rotatably attached to the vertical frame 23.Moreover, a bevel gear 57 provided on an end of a worm shaft 55 havingthe worm 53 is engaged with another bevel gear (not shown) provided on arotating shaft of a handle 59 which is rotatably supported by thevertical frame 23.

Therefore, the worm shaft 55 is rotated when the handle 59 is rotatedappropriately, and then the worm wheel 51 is rotated via the worm 53provided on this worm shaft 55. Hence the positions of the elevatingplates 37 can be adjusted vertically by rotating the handle 59. Here,due to the engagement between the worm wheel 51 and the worm 53, theworm 53 will note be rotated by the worm wheel 51. Hence it is possibleto fix and maintain the elevating plates at vertically adjustedpositions without requiring any lock mechanisms and the like.

In order to detect an elevating position of the elevating plates 37 froma reference position (such as a bottom position of the elevating plates37) when adjusting the elevating plates 37 vertically as describedabove, an elevating position detecting device 54 such as a dial gaugeincluding a vertically movable sensing pin which abuts on part of theelevating plate 37 is provided on one of the vertical frames 23. Henceit is possible to detect a extending thickness when extending the fooddough 9.

The extending roller unit 13 supported by the left and right supportbrackets 41 has the configuration as described below. Specifically, asshown in FIG. 6, left and right bearing bases 61 which are long in thefront-rear direction (the Y-axis direction) are integrally attached ontothe left and right support brackets 41, and both left and right ends ofa drive shaft 65 rotated by a drive motor 63 attached to the supportbracket 41 on the left side are rotatably supported on front ends of theleft and right bearing bases 61. Moreover, both left and right ends of asupport shaft 67 are supported on rear ends of the left and rightbearing bases 61 so as to be capable of adjusting positions indirections to approach and to recede from the drive shaft 65. Further,both end portions of an appropriate number of reinforcing bars 69 whichare long in the left-right direction are integrally connected to anintermediate portion of the left and right bearing bases 61 in thefront-rear direction thereof.

Drive pulleys 71 are integrally attached to both left and right ends ofthe drive shaft 65. Meanwhile, driven pulleys 73 are rotatably supportedon both left and right ends of the support shaft 67. Moreover, the leftand right endless members 75 such as timing belts or chains are woundaround the drive pulleys 71 and the driven pulleys 73. Multiple shaftconnecting members 77 are attached at even intervals on peripheralsurfaces of these left and right endless members 75, and both ends ofroller support shafts 81 for rotatably supporting extending rollers 79formed into a pipe shape that are long in the left-right direction, aredetachably connected to the left and right shaft connecting members 77.

Furthermore, left and right dust sealing mechanisms 83 for inhibiting(preventing) circulation of air between inside of a traveling region ofthe extending rollers 79 and inside of a traveling region of endlessmembers 75 are provided between both end portions of the respectiveextending rollers 79 and the left and right pair of endless members 75.To be more precise, as shown in FIG. 7A, sleeves 85 located close toboth end portions of the extending rollers 79 are provided on both leftand right ends of the respective roller support shafts 81. Moreover, anopening 87A formed on one end of the link plate 87 having the other endrotatably supported by one of the sleeves 85 is rotatably engaged withan adjacent sleeve 85. Therefore, the multiple link plates 87 supportedby the respective sleeves 85 are formed into an annularly connectedshape on the whole as shown in FIG. 7B.

As described above, outer guide members 89 (see FIG. 5) and inner guidemembers 91 for guiding an outer circumference and an inner circumferenceof the multiple link plates 87 connected into the annular shape whileholding the outer circumference and the inner circumference from bothleft and right sides are provided. To be more precise, upper covers 93formed into a square U-shape by uncovering lower ends of inner end edges93A in the left-right direction are attached to the left and rightbearing bases 61 so as to hold upper sides of the outer circumference ofthe multiple link plates 87 connected into the annular shape as shown inFIG. 5. Meanwhile, left and right brackets 95 protruding inward areprovided inside the left and right support brackets 41, and lower covers97 formed into a square U-shape by uncovering upper ends of inner endedges 97A in the left-right direction are attached to upper faces of theleft and right brackets 95 so as to hold lower sides of the outercircumference of the multiple link plates 87 connected into the annularshape. Further, front and rear covers (not shown) having inner end edgesformed into a square U-shape so as to hold the outer circumference ofarc portions on front and rear sides of the link plates 87 connectedinto the annular shape are provided so as to be connected to the upperand lower covers 93 and 97.

According to the above-described configuration, the drive pulleys 71,the driven pulleys 73, the endless members 75, and the like on the leftand right sides are located inside spaces enclosed by the upper andlower covers 93 and 97 as well as the front and rear covers.

The internal guide members 91 for guiding the inner circumference of themultiple annularly-connected link plates 87 while holding the innercircumference from both left and right sides are configured as describedbelow. Specifically, each cover plate 98 (see FIG. 6) is long in thefront-rear direction and is supported by either of ends of thereinforcing bars 69. Both upper and lower end edges of the cover plate98 are provided with square U-shaped openings (details not shown) forguiding the inner circumference of the multiple annularly-connected linkplates 87 while holding the inner circumference from the left-rightdirection. Moreover, end cover plates 99 each having a square U-shapedopening 99A in its arc-shaped outer peripheral edge are integrallyconnected and fixed to both front and rear ends of each of the coverplates 98 (the connection state not shown in details). The squareU-shaped opening 99A is configured to hold the inner circumference inarc shapes of the multiple annularly-connected link plates 87 fromeither of the left and right sides and guiding the inner circumference.

As understood already, the drive pulleys 71, the driven pulleys 73, theendless members 75, and the like are surrounded by the upper and lowercovers 93 and 97 as well as the front and rear covers, and are enclosedby the cover plates 98, the end cover plates 99, and the multiple linkplates 87 connected into the annular shape. That is, the travelingregions of the endless members 75 are enclosed by the multiple coversand cover plates and are maintained in the state of preventing(inhibiting) easy circulation of the air to and from the travelingregions of the extending rollers 79 that are caused to revolve by meansof movement of the endless members 75.

Accordingly, flour dust does not fall on the endless members 75 and thelike when performing a extending operation on the food dough 9 by use ofthe extending rollers 79. Moreover, the dust coming off the endlessmembers 75 does not fall on the extending rollers 79 and the like.

Here, the left and right upper covers 93 and the like are covered withleft and right main body covers 101 attached to the support brackets 41while both front and rear sides of the traveling regions of theextending roller 79 are covered with front and rear covers 103 (see FIG.6) provided between both front and rear portions of the main body covers101. Moreover, upper portions of the traveling regions of the extendingrollers 79 are covered with openable covers 105 (see FIG. 5) openablyprovided in the front-rear direction relative to the front and rearcovers 103 by use of hinge pins. That is, the front-rear direction andthe upward direction of the traveling regions of the extending roller 79are normally enclosed by the front and rear covers 103 and the openablecovers 105.

Here, the brackets 95 are provided with contact bars 107 (see FIG. 5)which are long in the front-rear direction and which are for rolling theextending rollers 79 so as to allow the extending rollers 79 to rotateand extend the food dough 9 at the time of revolution.

In the above-described configuration, the flour is sprinkled from theflouring device 31 in the course of transportation onto the food dough 9placed on the inclined transporting unit 7. Thereafter, when the fooddough 9 is transported to the vicinity of an upper portion of theinclined transporting unit 7, the food dough 9 is interposed between theinclined transporting unit 7 and the extending rollers 79, which revolvehorizontally by way of the extending roller unit 13 and which rotateswhile contacting the contact bars 107. Hence the food dough 9 istransported to the horizontal direction transporting unit 11 and issubjected to the extending operation. In this case, the flour or thelike does not enter the traveling regions of the endless members 75 asdust. Moreover, the dust or the like generated in the traveling regionsof the endless members 75 does not enter the traveling regions of theextending rollers 79.

When performing the extending operation on the food dough 9 as describedabove, by adjusting a vertical position of the extending roller unit 13in accordance with the thickness of the food dough 9 transported by theinclined transporting unit 7, the extending roller unit 13 is adjustedin the obliquely vertical direction along the inclined guide members 35as described previously. Specifically, when the food dough 9 is stillthick, the extending roller 13 is lifted obliquely so as to protrudetoward the inclined transporting unit 7 by adjusting the verticalposition of the extending roller unit 13 in the obliquely upwarddirection.

Accordingly, a clearance in the vertical direction between the inclinedtransporting unit 7 and the extending roller unit 13 for interposing(holding) the food dough 9 is increased, and a range of the extendingoperation while holding the food dough 9 by use of the inclinedtransporting unit 7 and the extending roller unit 13 becomes longer. Inother words, the clearance for a compressing and sending region forcompressing the food dough 9 between the extending roller unit 13 andthe inclined transporting unit 7 and for sending the food dough 9 towardthe horizontal direction transporting unit 11 is increased, and thecompressing and sending region becomes longer in the front-reardirection at the same time.

Accordingly, it is possible to suppress a tendency that the thick fooddough 9 is lifted up in the vicinity of an entrance between theextending roller unit 13 and the inclined transporting unit 7 and tosuppress rapid thinning of the thick food dough 9, i.e., to suppress achange rate of the thickness to a small level. In this way, it ispossible to suppress an increase in an internal stress of the food dough9 at the time of the extending operation.

Here, the extending operation on the food dough 9 is achieved by use ofa difference in the transporting speed between the inclined transportingunit 7 and the horizontal direction transporting unit 11 and by use of apressurizing operation of the extending rollers 79 which are rolled onan upper surface of the food dough 9. Moreover, upon completion of theextending operation on the food dough 9, it is possible to uncover thevicinity of the upper end of the inclined transporting unit 7 and theupper side of the horizontal direction transporting unit 11 by movingthe extending roller unit 13 in the leftward direction in FIG. 1 asdescribed previously. Hence it is possible to perform maintenance check,cleaning, and the like easily.

The horizontal direction transporting unit 11 is formed of a beltconveyor and is supported by the support plate 33 installed upright atthe base plate 5. To explain further on this horizontal directiontransporting unit 11, left and right support brackets 109 (see FIG. 9)protruding to the downstream side are integrally provided on the supportplate 33, and both left and right ends of a rotating shaft 113integrally provided with a roller 111 are rotatably supported by thissupport brackets 109. Moreover, one end of the rotating shaft 113 isinterlocked and connected to a motor 115 which is attached to one of thesupport brackets 109. Furthermore, a conveyor belt 121 is wound aroundthe roller 111 and a roller 119 supported by a roller bracket 117 (seeFIG. 8) provided to protrude from the support plate 33 toward anupstream side.

Therefore, by driving the motor 115, the conveyor belt 121 in thehorizontal direction transporting unit 11 transports the extendedstrip-shaped food dough 9 toward the lapping apparatus 17.

The lapping apparatus 17 for lapping the food dough 9 onto thetransporting unit 15 has a configuration to be described below. The fooddough 9 undergoes the extending operation by the extending rollers 79provided on the extending roller unit 13 and thus is extended into thethin strip shape (the sheet shape).

Specifically, the lapping apparatus 17 is provided on the downstreamside (on the right side in FIGS. 8 and 9) of the horizontal directiontransporting unit 11. Moreover, the lapping apparatus 17 for lapping thestrip-shaped food dough 9 transported (conveyed) by the horizontaldirection transporting unit 11 onto the transporting unit 15 includes aroller shaft 123 located in the vicinity of the roller 111 in thehorizontal direction transporting unit 11. Here, both left and rightends of the roller shaft 123 are rotatably supported by the left andright support brackets 109.

A roller 125 is integrally provided on this roller shaft 123. Meanwhile,base portions of left and right swing arms 127 swingable in the verticaldirection are swingably supported on both ends of the roller shaft 123.Moreover, a conveyor belt 131 is wound around the roller 125 and adriven roller 129 rotatably supported on tip ends of the left and rightswing arms 127. To rotate the conveyor belt 131, a motor 133 attached toone of the support brackets 109 is interlocked and connected to theroller shaft 123 via a belt, a chain, and the like.

As understood from the above-described configuration, the swing arms 127and the conveyor belt 131 constitute a swing conveyor 135 which isvertically swingable. A swing guide member 137 provided to be swingablein the horizontal direction as well as in a direction (an orthogonaldirection, the front-rear direction) intersecting the transportationdirection of the transporting unit 15 is provided on a tip end of thisswing conveyor 135. This swing guide member 137 is configured to performan operation to guide the strip-shaped food dough 9 falling off (flowingdown) from the tip end of the swing conveyor 135 onto the transportsurface of the transporting unit 15.

To be more precise, the left and right swing arms 127 are provided withleft and right support brackets 139 located outward of both ends of thedriver roller 129, and the left and right support brackets 139 arerespectively provided with left and right support shafts 141 locatedcoaxially with the driver roller 129. Moreover, upper ends of left andright swing brackets 143 are supported by the left and right supportshafts 141, whereby the swing brackets 143 are provided to be swingablearound the support shafts 141 in the Y-axis direction (the front-reardirection).

Further, both left and right ends of a guide plate 145 large in size inthe vertical and left-right directions are connected integrally to theleft and right swing brackets 143 by bolts and the like with bracketsand the like interposed therebetween. Meanwhile, a bracket 147protruding forward is attached to a middle portion, in the longitudinaldirection, of each of the left and right swing brackets 143. A guideplate 151 is attached to the bracket 147 to face the guide plate 145.The guide plate 151 forms a flow-down clearance 149 with the guide plate145, and is capable of adjusting the width of the flow-down clearance149. The flow-down clearance 149 allows the strip-shaped food dough 9 toflow down between the guide plate 145 and the guide plate 151. Guiderollers 145A and 151A which are rotatable in contact with thestrip-shaped (sheet-shaped) food dough 9 that falls through theflow-down clearance 149 are provided rotatably on lower ends of theguide plates 145 and 151 facing each other in the front-rear direction.

In order to swing the swing guide member 137 horizontally in thefront-rear direction (the Y-axis direction), a protruding frame 153 isprovided to significantly protrude forward from the support plate 33.This protruding frame 153 is provided to intersect a position above thetransporting unit 15 at right angles to the transportation direction ofthe transporting unit 15. This protruding frame 153 includes a verticalwall portion 153V and an upper horizontal wall portion 153H.Accordingly, a vertical sectional shape of the protruding frame 153 isan inverted L-shape.

Moreover, a guide rail (a guide member) 155 which is long in thefront-rear direction (the Y-axis direction) is horizontally attached toa lower surface of the horizontal wall portion 153H, and a slider 157movably supported by this guide rail 155 is connected to one of theswing brackets 143 via a connecting member 159. Moreover, a motor 161 isattached to a rear end of the vertical wall portion 153V of theprotruding frame 153, and a drive pulley 165 is integrally attached to adrive shaft 163 rotated by this motor 161. Further, an endless member169 such as a timing belt is wound around the drive pulley 165 and adriven pulley 167 provided rotatably on a tip end of the vertical wallportion 153V. This endless member 169 is connected relatively rotatablyto the slider 157 by use of an appropriate connecting member.

Accordingly, when the motor 161 is rotated back and forth, the endlessmember 169 is rotated back and forth and the slider 157 is reciprocatedin the front-rear direction along the guide rail 155. Hence, a lowerportion of the swing guide member 137 is caused to swing horizontally inthe front-rear direction in conjunction with reciprocation of the slider157. That is, the motor 161, the endless member 169, and the likeconstitute a tip portion reciprocating unit for reciprocating the lowerend (the tip end) of the swing guide member 137.

Here, by controlling forward and backward rotation of the motor 161under control of a control device (not shown), it is possible to controlpositions of reciprocations of the slider 157 which reciprocates in thefront-rear direction and a stroke length of the reciprocation.

As understood from the above-described configuration, the strip-shapedfood dough 9 transported to the downstream side by the horizontaldirection transporting unit 11 is conveyed to the swing conveyor 135 inthe lapping apparatus 17. Thereafter, the food dough 9 falling from thetip end of the swing conveyor 135 flows down through the flow-downclearance 149 in the swing guide member 137. When the lower part of thisswing guide member 137 moves from a vertical state to the forwarddirection (the right direction in FIG. 8), the food dough 9 is guided bythe guide plate 145 and the guide roller 145A and is then lapped ontothe transport surface of the transporting unit 15. Meanwhile, when thelower part of the swing guide member 137 moves from the vertical stateto the backward direction, the food dough 9 is guided by the guide plate151 and the guide roller 151A and is then lapped onto the transportingunit 15.

That is, by repeatedly swinging the swing guide member 137 in thefront-rear direction, it is possible to repeatedly lapped thestrip-shaped food dough 9 continuously conveyed, onto the transportingunit 15 while being lapped in the front-rear direction.

When lapping the food dough 9 on the transporting unit 15 as describedabove, the swing conveyor 135 swings vertically but a dimension of theclearance between the tip end (the lower end of the swing guide member137 and the transport surface of the transporting unit 15 is alwaysmaintained at a constant value. Therefore, a length from the roller 125at the base end of the swing conveyor 135 to the transport surface ofthe transporting unit 15 for lapping the food dough 9 is alwaysmaintained at substantially a constant value. Accordingly, it ispossible to prevent tension or relaxation to the food dough 9 whenlapping the food dough 9 onto the transporting unit 15 while swingingthe swing guide member 137 in the front-rear direction.

The entire contents of Japanese Patent Application No. 2009-053106(filed on Mar. 6, 2009) are incorporated herein by reference.

Although the invention has been described above by reference to certainembodiments of the invention, the invention is not limited to theembodiments described above. Modifications and variations of theembodiments described above will occur to those skilled in the art, inlight of the above teachings. The scope of the invention is defined withreference to the following claims.

REFERENCE SIGNS LIST

-   1 FOOD DOUGH EXTENDING APPARATUS-   5 BASE PLATE-   7 INCLINED TRANSPORTING UNIT-   9 FOOD DOUGH-   11 HORIZONTAL DIRECTION TRANSPORTING UNIT-   13 EXTENDING ROLLER UNIT-   15 TRANSPORTING UNIT-   17 LAPPING APPARATUS-   19 SLIDE STAND-   21, 155 GUIDE RAILS-   35 GUIDE MEMBER-   37 ELEVATING PLATE-   39 SLIDE GUIDE-   41 SUPPORT BRACKET-   43 ROTATING SHAFT-   45 ECCENTRIC DISC-   49 PIN MEMBER-   51 WORM WHEEL-   53 WORM-   59 HANDLE-   63 DRIVE MOTOR-   65 DRIVE SHAFT-   67 SUPPORT SHAFT-   69 REINFORCING BAR-   71, 165 DRIVE PULLEYS-   73, 167 DRIVEN PULLEYS-   75, 169 ENDLESS MEMBERS-   79 EXTENDING ROLLER-   83 DUST SEALING MECHANISM-   85 SLEEVE-   87 LINK PLATE-   87A, 99A OPENINGS-   89 EXTERNAL GUIDE MEMBER-   91 INTERNAL GUIDE MEMBER-   93 UPPER COVER-   93A INNER END EDGE-   99 END COVER PLATE-   101 MAIN BODY COVER-   103 FRONT (REAR) COVER-   105 OPENABLE COVER-   107 CONTACT BAR-   111, 119, 125 ROLLERS-   113 ROTATING SHAFT-   121, 131 CONVEYOR BELTS-   127 SWING ARM-   129 DRIVEN ROLLER-   135 SWING CONVEYOR-   137 SWING GUIDE MEMBER-   143 SWING BRACKET-   145, 151 GUIDE PLATES-   145A, 151A GUIDE ROLLERS-   149 FLOW-DOWN CLEARANCE-   153 PROTRUDING FRAME-   153V VERTICAL WALL PORTION-   153H HORIZONTAL WALL PORTION-   157 SLIDER

1. A method of lapping food dough in which strip-shaped food doughcontinuously conveyed is lapped onto a transporting unit configured totransport the food dough in a direction intersecting a conveyancedirection of the food dough, the method comprising the steps of:conveying the conveyed food dough to a swing guide member through aswing conveyor swingable in a vertical direction, the swing guide memberprovided at a tip end of the swing conveyor so as to be swingable in adirection being horizontal and intersecting a transportation directionof the transporting unit; and always maintaining an almost constantclearance between a tip end of the swing guide member and a transportsurface of the transporting unit and thereby maintaining an almostconstant length of the food dough from a base end of the swing conveyorto the transport surface of the transporting unit.
 2. An apparatus forlapping food dough in which strip-shaped food dough continuouslyconveyed is lapped onto a transporting unit configured to transport thefood dough in a transportation direction intersecting a conveyancedirection of the food dough, the apparatus comprising: a verticallyswingable swing conveyor configured to convey the conveyed food dough ina direction identical to the conveyance direction; a swing guide memberswingably provided on a tip end of the swing conveyor, the swing guidemember being swingable in a direction being horizontal and intersectingthe transportation direction of the transporting unit; and a guidemember positioned above the transporting unit and configured to guide atip end of the swing guide member in a horizontal direction.
 3. Theapparatus for lapping food dough according to claim 2, furthercomprising a tip end reciprocating unit configured to reciprocate thetip end of the swing guide member along the guide member.